Institution, 8. B. S. (1990). Cross recesses for screws. London : British Standards Institution.
芝加哥风格引文Institution, 8096 British Standards. Cross Recesses for Screws. London : British Standards Institution, 1990.
MLA引文Institution, 8096 British Standards. Cross Recesses for Screws. London : British Standards Institution, 1990.
警告：这些引文格式不一定是100％准确.